Template-free one-step synthesis of micro-mesoporous CeO2–ZrO2 mixed oxides with a high surface area for selective hydrogenation

Виканова, К. В.; Редина, Е. А.; Капустин, Г. И.; Ниссенбаум, В. Д.; Мишин, И. В.; Kostyukhin, Egor M.; Кustov, Leonid М.

doi:10.1016/j.ceramint.2020.02.197

Cited by 21 publications

(6 citation statements)

References 63 publications

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“…The morphological and textural properties of the ceria–zirconia (CZ) carrier are described in our previous work 15–17 and are presented in the Supporting information (Table S1). Unfortunately, electron microscopical study of the sample with the highest metal loading (0.25% Pt/CZ) did not allow us to distinguish platinum nanoparticles due to its low content; only the support nanoparticles can be observed on the high‐resolution transmission electron microscopical images (Supporting Information, Fig.…”

Section: Resultsmentioning

confidence: 99%

Heterogeneous additive‐free highly selective synthesis of 2,5‐bis(hydroxymethyl)furan over catalysts with ultra‐low Pt content

Виканова

Chernova

Редина

et al. 2021

J of Chemical Tech & Biotech

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Ultra‐low‐loaded supported Pt catalysts showed an extremely high activity in selective hydrogenation of bioavailable 5‐hydroxymethylfurfural (5‐HMF) to the corresponding diol, i.e. 2,5‐bis(hydroxymethyl)furan (BHMF); among the synthesized catalysts with a Pt content varying in the range 0.025–0.25 wt%, the most active one appeared to be the sample 0.1% Pt/CeO2–ZrO2, which allows us to obtain BHMF with a 97% yield and 100% selectivity from 5‐HMF without the use of alkali or any other additives at a temperature of 170 °C and H2 pressure of 1 MPa, with the 5‐HMF:Pt ratio higher than 1000 mol mol–1. © 2021 Society of Chemical Industry (SCI).

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Section: Resultsmentioning

confidence: 99%

Heterogeneous additive‐free highly selective synthesis of 2,5‐bis(hydroxymethyl)furan over catalysts with ultra‐low Pt content

Виканова

Chernova

Редина

et al. 2021

J of Chemical Tech & Biotech

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“…Nevertheless, it has several well-known disadvantages, mainly a wide size distribution of prepared nanoparticles, and as a result, differences in the physical properties due to the "size effect". This limitation can be overcome by using nontraditional synthesis methods, especially, a microwave approach [18][19][20][21]. It has been shown [22] that the use of microwave irradiation during the synthesis of nanomaterials allows one to obtain nanoparticles with a narrower size distribution, to control and adjust the shape and structure of nanomaterials, to reduce synthesis duration, and to enhance the yield and crystallinity of the obtained nanoparticles.…”

Section: Introductionmentioning

confidence: 99%

Microwave-Assisted Synthesis of Water-Dispersible Humate-Coated Magnetite Nanoparticles: Relation of Coating Process Parameters to the Properties of Nanoparticles

et al. 2020

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Nowadays, there is a demand in the production of nontoxic multifunctional magnetic materials possessing both high colloidal stability in water solutions and high magnetization. In this work, a series of water-dispersible natural humate-polyanion coated superparamagnetic magnetite nanoparticles has been synthesized via microwave-assisted synthesis without the use of inert atmosphere. An impact of a biocompatible humate-anion as a coating agent on the structural and physical properties of nanoparticles has been established. The injection of humate-polyanion at various synthesis stages leads to differences in the physical properties of the obtained nanomaterials. Depending on the synthesis protocol, nanoparticles are characterized by improved monodispersity, smaller crystallite and grain size (up to 8.2 nm), a shift in the point of zero charge (6.4 pH), enhanced colloidal stability in model solutions, and enhanced magnetization (80 emu g−1).

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“…The key characteristics of the mixed ceria-zirconia support are given in Table 1. They were also described in detail in our previous works [10,11].…”

Section: Resultsmentioning

confidence: 99%

Liquid-Phase Hydrogenation of Benzaldehyde on Low-Percentage Pt-Containing Catalysts under Mild Conditions

Виканова

Редина

Капустин

2022

Russ. J. Phys. Chem.

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The reaction of the liquid-phase hydrogenation of benzaldehyde is studied in two modes: at room temperature and atmospheric pressure, and at a temperature of 70°С and a pressure of 0.5 MPa on Pt/CeO2–ZrО2 catalysts with metal contents of 1 to 0.025 wt %. A 96% conversion of benzaldehyde is obtained on 1% Pt/CeO2–ZrО2 catalysts at room temperature, while a 97% conversion is obtained on 0.1% Pt/CeO2–ZrО2 catalysts at elevated temperatures. The selectivity of the formation of benzyl alcohol is in all cases 100%.

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Template-free one-step synthesis of micro-mesoporous CeO2–ZrO2 mixed oxides with a high surface area for selective hydrogenation

Cited by 21 publications

References 63 publications

Heterogeneous additive‐free highly selective synthesis of 2,5‐bis(hydroxymethyl)furan over catalysts with ultra‐low Pt content

Heterogeneous additive‐free highly selective synthesis of 2,5‐bis(hydroxymethyl)furan over catalysts with ultra‐low Pt content

Microwave-Assisted Synthesis of Water-Dispersible Humate-Coated Magnetite Nanoparticles: Relation of Coating Process Parameters to the Properties of Nanoparticles

Liquid-Phase Hydrogenation of Benzaldehyde on Low-Percentage Pt-Containing Catalysts under Mild Conditions

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